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 Post subject: ExcelStor J8160S doesnt spin up
PostPosted: March 22nd, 2018, 10:42 
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Joined: June 12th, 2017, 10:02
Posts: 7
Location: Germany
Hello there,

i have here a ExcelStor J8160S which doesnt spin up.
I suspect that the pcb has a defect.
Any advice or ideas?

thanks in advance

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 Post subject: Re: ExcelStor J8160S doesnt spin up
PostPosted: March 22nd, 2018, 11:22 
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Joined: October 21st, 2007, 8:48
Posts: 1326
Match PCB # and transfer NV-RAM (8 legs IC on the right corner) from patient to donor.

Good luck


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 Post subject: Re: ExcelStor J8160S doesnt spin up
PostPosted: March 22nd, 2018, 20:58 
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Joined: September 8th, 2009, 18:21
Posts: 11620
Location: Australia
Measure the voltages at D3 and D4 (12V and 5V TVS diodes).

Measure the voltages at VR1 (2SC6052), Q1, and Q3 (2SA1242).

Measure the voltages at C11, C17, and C18 (Cuk converter).

Does the drive appear in BIOS? Could it be a Power Up In Standby (PUIS) issue?

BTW, the drive appears to be a rebadged Hitachi (Pathfinder 2).

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 Post subject: Re: ExcelStor J8160S doesnt spin up
PostPosted: April 3rd, 2018, 8:46 
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Joined: June 12th, 2017, 10:02
Posts: 7
Location: Germany
fzabkar wrote:
Measure the voltages at D3 and D4 (12V and 5V TVS diodes).

Measure the voltages at VR1 (2SC6052), Q1, and Q3 (2SA1242).

Measure the voltages at C11, C17, and C18 (Cuk converter).

Does the drive appear in BIOS? Could it be a Power Up In Standby (PUIS) issue?

BTW, the drive appears to be a rebadged Hitachi (Pathfinder 2).


Thanks.
What do you mean by measuring the voltages? Do you mean while the drive is running? I always measured in ohm. (D3 has 0 Ohm)

Is it possible to remove the diode or the replace it? Or would that affect other parts of the pcb? Maybe replace the whole pcb? if so - how do I know which pcb to get?

Thanks again for the help :)


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 Post subject: Re: ExcelStor J8160S doesnt spin up
PostPosted: April 3rd, 2018, 19:03 
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Joined: September 8th, 2009, 18:21
Posts: 11620
Location: Australia
D3 looks like a bidirectional 12V TVS diode. Does the drive shut down your power supply?

_________________
A backup a day keeps DR away.


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 Post subject: Re: ExcelStor J8160S doesnt spin up
PostPosted: April 9th, 2018, 8:51 
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Joined: June 12th, 2017, 10:02
Posts: 7
Location: Germany
fzabkar wrote:
D3 looks like a bidirectional 12V TVS diode. Does the drive shut down your power supply?


no it the power supply is fine after plugging the drive in.


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 Post subject: Re: ExcelStor J8160S doesnt spin up
PostPosted: April 9th, 2018, 18:26 
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Joined: September 8th, 2009, 18:21
Posts: 11620
Location: Australia
MindfulSoul wrote:
fzabkar wrote:
D3 looks like a bidirectional 12V TVS diode. Does the drive shut down your power supply?


no it the power supply is fine after plugging the drive in.

unknown wrote:
Match PCB # and transfer NV-RAM (8 legs IC on the right corner) from patient to donor.

Good luck

_________________
A backup a day keeps DR away.


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